Infant seat



FIG. 1 is a perspective view of an infant seat showing our design;

FIG. 2 is a side elevation view of an infant seat showing our design;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for an infant seat, as shown and described. 